передаю строку кода в WinForms

private void btnRun_Click(object sender, EventArgs e)
        {
            CompilerParameters cp = new CompilerParameters();
            cp.GenerateInMemory = true;
            string[] assemblies = new string[0];//new[] {Assembly.GetExecutingAssembly().Location};
            CompilerResults results = new CSharpCodeProvider().CompileAssemblyFromSource(cp, tbCode.Text);
            object obj = results.CompiledAssembly.CreateInstance("instance");
            IRunable run = (IRunable)obj;
            string result = run.Run();
            lblResult.Text = result;
        }

получаю исключение
Could not load file or assembly 'file:///C:\Users\myName\AppData\Local\Temp\zuqtpnlz.dll' or one of its dependencies. The system cannot find the file specified.

zuqtpnlz.dll по указаному пути нету

как выполнить код выше?